How long will it take a two mile long train going 12 miles per hour to get completely through a mile - long tunnel? show me the work.

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

How do i do this? i don’t understand

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?